1. Additional evidence is presented in support of the view which postulates a close chemical and biologic relation between the active ingredients in poison ivy and Japan lac. 2. Biologic evidence, based on the use of the patch test in man, is presented in support of the view that the active ingredient in poison ivy is a catechol derivative with a long, unsaturated side-chain in the 3-position. ...

Peter Diakow Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada Synopsis Dimethyl-ether (C2H6O) a common hydrocarbon is increasingly being used as a transportation fuel and as an aerosol propellant, very limited explosion safety data is available for this fuel. Experiments were performed to determine the detonation characteristics of dimethyl-ether air mixt...

The work consists of a detailed study the influence pressure, temperature, volume velocity and molar ratio H 2 /CO on CO conversion DME output. synthesis in presence CuO·ZnO·Al O 3 ·ZrO ·CaO/bentonite: γ-Al catalyst was studied terms their layer-by-layer loading. It shown that method loading catalysts 2:1:2 is best option. Further studies catalytic activity samples were carried out using method...

The depletion of fossil energy sources and the legislation regarding emission control demand use alternative fuels rapid progression aftertreatment technologies. study dimethyl ether (DME) catalytic oxidation is important in this respect, as DME a promising clean fuel at same time VOC pollutant present tail gases industrial processes. In work, copper ferrite catalysts synthesized via citrate co...